I can't found how to set mail to receive an confirmation when I send email to somebody; on windows there are two options the first is that the server confirm the reception and the second is the read confirmation.
Also a more descriptive thread title would help you cater to the right audience.
Example: How to get confirmation if recipient received email via Mail.app?
To edit your thread title, just click on the
button on the bottom right of your original post and then click the "Go Advanced" button below your message.
Have you also taken a look at MRoogle, since that question may have been asked several times?